from someone whos probably poured more than they should into their float:

if you're having fun, its worth it.  you could start with another hull, but it will be another mystery.  the reason i stuck with my hull (even though tahitis are traditionally the ass of the boating world) is because i know exactly what it is.  ive literally ripped EVERYTHING out of it and redone it.  floor, stringers, motor, tanks, wiring, plumbing, pump, etc.  in the end i have a boat that *I* know is safe and will last for quite a while for me and my family/friends.  its got great space for the size and it works for us.  i enjoy working on it just as much if not more as just watching it sit on the lake.  best thing is that it fits in my garage.  i know i wont get what i want for it, im no stranger to "projects"... ive owned many cars in my life that ive sunk money into and sold for market value.  no biggie thats the game. 

if you're not willing to invest the time and effort into that hull, then sure grab another one.  hulls are a dime a dozen.